public function testCommitTransaction()
 {
     $database = $this->getMockBuilder('\\DatabaseBase')->disableOriginalConstructor()->getMockForAbstractClass();
     $database->expects($this->any())->method('isOpen')->will($this->returnValue(true));
     $readConnectionProvider = $this->getMockBuilder('\\SMW\\DBConnectionProvider')->disableOriginalConstructor()->getMock();
     $writeConnectionProvider = $this->getMockBuilder('\\SMW\\DBConnectionProvider')->disableOriginalConstructor()->getMock();
     $writeConnectionProvider->expects($this->atLeastOnce())->method('getConnection')->will($this->returnValue($database));
     $instance = new Database($readConnectionProvider, $writeConnectionProvider);
     // Can't reach the `DatabaseBase::begin`/`DatabaseBase::commit`
     // with a mock because it is declared as final
     $instance->beginTransaction(__METHOD__);
     $instance->commitTransaction(__METHOD__);
 }